Course detail
Communication systems 2
FEKT-BKC-KS2Acad. year: 2021/2022
Following the subject Communication systems 1, students first become familiar with radio interface of communication systems (radio receiver and transmitter conception and architecture, level of their digitization, software defined radio) and with the specific building blocks function (amplifiers, mixers, oscillators, frequency synthesizers, filters, etc.). In the next part, the introduction to the current wireless communication systems will be given (fundamentals of radio and television broadcasting, satellite communications, cellular radiocommunication systems, etc.). Following part will be aimed at voice and data transmission via public switched telephone networks (network digitalization, modems, ISDN and xDSL technologies). Last part of the subject will be focused at the data transmission and network technologies (fundamentals of optical communication, network topologies, wireles networks PAN, LAN a WAN, digital hierarchy SDH/SONET, network components, protocols and services, etc.).
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Department
Learning outcomes of the course unit
1. Orientate oneself in current wired, optical and wireless communication systems for the transmission of audio, video and data signals,
2. describe their architecture, eventual network structure and communication protocols used,
3. explain and apply methods of signal processing and techniques of sharing of communications resources,
4. explain their specific circuit solution especially with the focus on radiocommunication systems
Prerequisites
Co-requisites
Planned learning activities and teaching methods
Assesment methods and criteria linked to learning outcomes
Course curriculum
2. Principle and operation of analogue blocks. Oscillators, synthesizers, mixers, amplifiers, filters.
3. Software defined radio. ADC and DAC converters, bandpas sampling. Algorithms and building blocks.
4. Digital realization of mixers, filters, synthesizers. Methods of hardware implementation.
5. Analog and digital systems for radio and television broadcasting. DAB, DMB, DVB, Radio mondiale.
6. Cellular radiotelephone systems. GSM, UMTS, LTE. Cordless Phones. DECT.
7. Satellite communication. Transponders. Transmission of TV broadcasts, phone calls, and data.
8. Public switched telephone network. Call and data transfer. ISDN networks. xDSL technology.
9. Optical communication systems. Optical fibers, terminal equipment. ISO/OSI reference model.
10. Subdivision of computer networks. Network architectures (Token-Ring, Ethernet, FDDI, ATM).
11. Wireless networks PAN, LAN a WAN. SDH/SONET networks. Network components and protocols.
12. Ethernet. TCP/IP network architecture. Layer protocols.
13. Internet. History and services.
Work placements
Aims
Specification of controlled education, way of implementation and compensation for absences
Recommended optional programme components
Prerequisites and corequisites
Basic literature
CHIEN, Ch. Digital Radio on a Chip. Kluwer Academic Publishers, Norwell 2000 (EN)
PROKEŠ, A. Rádiové přijímače a vysílače. Přednášky. Rádiové přijímače a vysílače. Přednášky. FEKT VUT Brno, Ústav radioelektroniky: MJ Servis s.r.o., 2002. ISBN: 80-214-2263- 7. (CS)
SKLAR, B. Digital Communications: Fundamental and Applications, 3rd Edition. Pearson, 2020 (CS)
Recommended reading
Elearning
Classification of course in study plans
- Programme BKC-EKT Bachelor's 3 year of study, summer semester, compulsory
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
Receiver input circuits. Selective tuned amplifiers.
Additive and multiplicative mixers. Mixers with spurious product reduction. Feedback LC and crystal oscillators. Voltage-controlled oscillators.
Frequency synthesis. Phase-locked loop. DDFS. IF amplifiers.
AM, FM and PM demodulators. MPSK, MQAM, FSK, GMSK demodulators. Carrier recovery and symbol timing recovery circuits.
Auxiliary receiver circuits. AVC and AFC circuits.
Analog and digital transmitters architecture. Significant parameters. Power amplifiers. A, B and C classes. High-efficiency power amplifiers, operating classes D, E and F. Power amlifier linearisation techniques.
AM, FM and PM modulators. MPSK, MQAM, FSK, GMSK modulators. Auxiliary transmitter circuits. Drivers. Power combiner.
Stereo broadcasting. Stereo coders and decoders. Radio Data System (RDS).
Digital signal processing used in the radio receivers and transmitters. Frequency downconversion, interpolation, decimation, frequency filtering, matched filtering, bandpass sampling, etc. Software radio.
Digital audio broadcasting T-DAB.
Laboratory exercise
Teacher / Lecturer
Syllabus
Characteristics of AGC circuitry
Characteristics of AFC circuitry.
Class A, B, and C power amplifier linearity and efficiency.
Stereo decoder characteristic.
Short Wave transmitter spectrum properties in the case of AM, FM, CW, and SSB modulation.
Receiver noise figure.
Digital modulation properties.
Elearning